/ Dictionary / Index C coigne: Meaning and Definition of Find definitions for: coigne Pronunciation: (koin), [key] — coigned, coign•ing. quoin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coigne (Thesaurus) coign coign of vantage Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language